Connecting The Door Contact Switch - Viessmann FT 0700 Assembly And Operation Manual

GB
6.1

Connecting the door contact switch

The evaporation fan should be switched off when the door
is open. We recommend installing a potential-free door
contact switch. (Switching power 230VAC, min. 0.5A)
The connection is made to the 4-pin socket on the suction
side of the evaporator fan.
On delivery, the unit is ready for operation without an
external door contact switch. The door contact switch is
not part of the material delivered with the unit.
If a unit is connected to a door contact switch, the
parameter P29 on the regulator has to be set to „1". (See
8.1, Parameter List)
6.2 Connection to the fault indicator
The regulator has a potential-free fault indicator to
be connected to such a system at the site (Max 10A,
230 VAC).
In case of fault, the contacts C and NC are closed.
The socket is on the plate. (Plug connector A3 orange)
6.3 Connecting to power supply and operation
Attention!
Do not switch electrical power supply on until
beginning operation – Danger!
Work on the power supply connection and protective
measure must be undertaken by a specialist according to
IEC 364, local regulations and the conditions of the local
power supply company.
Plugs must be placed in regulationgrounded sockets
(230VAC, 50Mz,16A).
The device will start after a self-test by the regulator with a
delay of approx 3 minutes (adjustable according to
parameter P34). For initial operation, this delay can be
avoided by switching the Start/Stop switch off and then
on again.
General notice (liability): the details of this technical documents serve for description. Consents regarding the availability of certain features or
regarding a certain purpose always require a special written agreement.
Page 10 GB
4-pin connector
on the unit from the coldroom
2
3
1
PE
Door contact switch
Drawing shows open door
A3
C NC NO
6.1 - 6.3
L1
2
N
3
230VAC
1
max. 250 VA
PE
PE
Right reserved to make technical changes!